Parts for your 2012 Toyota Bb-Strut mounts

2012 Toyota bB strut-mounts

Strut-mounts are absolutely relevant on the 2012 Toyota bB. Technical documentation for the QNC2# series bB shows a front MacPherson strut suspension with an upper support (strut mount/top mount) at each front strut. This is detailed in Toyota’s New Car Features (NCF) for the bB QNC20/21/25, the Toyota Repair Manual for Chassis and Suspension for the same series, and the Toyota/Daihatsu Electronic Parts Catalogue, which lists the front suspension support sub-assembly (strut top). So, yes—this model is fitted with strut-mounts at the front from factory.

On the 2012 bB, the strut-mounts sit between the body and the strut assembly. They isolate vibration and noise, let the strut rotate smoothly with the steering, and help keep alignment steady over bumps. When the rubber insulator hardens or cracks, or the bearing inside the mount wears, drivers can cop clunks over potholes, a groan when turning the wheel, vague steering, or uneven tyre wear. Left too long, it can take out a good set of tyres and make the car feel unsettled on rough Kiwi and Aussie roads.

Best practice is to inspect the strut-mounts during routine servicing—say every 20,000 km or 12 months—especially if the bB runs heavy loads, bigger wheels, or spends time on corrugated or coastal roads. Look for perished rubber, cracked housings, rust staining, or play when the strut is unloaded. If one side’s gone, replace both front strut-mounts as a pair to keep steering feel even. Always follow Toyota repair manual procedures, support the knuckle, and torque new hardware correctly. After any strut-mount replacement, a wheel alignment is a must to set camber and toe back where they should be.

• Typical symptoms: clunking over bumps, steering creak, wandering on the motorway, feathered or cupped tyres.
• Service tips: replace in pairs, renew the bearing/insulator, check the strut top nuts and studs, and finish with a proper alignment.

For owners wanting a quieter, tighter front end, fresh strut-mounts on a 2012 Toyota bB are a tidy upgrade that restores steering precision and knocks down cabin noise, especially on coarse-chip seal.

How long do strut-mounts last on a 2012 Toyota bB?

On typical Australian and New Zealand roads, expect 80,000–150,000 km, but they can wear sooner with bigger wheels, rough surfaces, or lowered springs. Inspect them annually and any time the front end starts making noise or the steering feels notchy.

Do strut-mounts affect alignment and tyre wear?

Yes. A tired mount can let camber and caster shift under load, which scuffs tyres and makes the bB tramline. Replacing worn strut-mounts and then doing a wheel alignment helps tyres wear evenly and keeps the steering straight.

Is an alignment required after replacing strut-mounts?

Definitely. Any time the strut is removed, alignment angles can change. Book a full alignment after replacement so the bB tracks true and the steering wheel sits bang-on centre.